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46  Using Arduino / Project Guidance / Re: Assigning many I2C addresses to an Arduino on: April 02, 2014, 10:46:02 am
Could you maybe get software I2C slave code and tweak it to respond to multiple addresses?
47  Using Arduino / Project Guidance / Re: Larger 7 segment with MAX7219 on: April 02, 2014, 10:34:47 am
Probably a silly question but did you re-wire for the new segments as the pinouts are different.
48  Using Arduino / Programming Questions / Re: PLC pulse command equivalence on: April 02, 2014, 10:06:01 am
@ Riva when the PE beam is broken the relay contacts change state until the beam is unbroken (for the use of a better word). Usually it is momentary as people & vehicles pass thru it, but occasionally a vehicle parks in front of it which means the contacts stay closed / open. I can't remember which way it is wired.
If the relay state stays the same till the beam is unbroken then use a flag variable that is set when you activate the sounder for 1 second and does not reset until beam is unbroken. After your 5 minutes have passed if the flag is still set and the beam is still broken then don't sound again.
49  Using Arduino / Project Guidance / Re: A $3.77 waterproof case for Arduino Projects on: April 02, 2014, 09:52:58 am
Obviously these should work just fine behind a glass or polycarbonate faceplate, needing only a plenum in between the two sensor units, extending out to the faceplate.
I was thinking just glue direct to inside of lens. May need result re-calibrating to compensate for IR loss by both RX & TX through lens.
50  Using Arduino / Project Guidance / Re: Help me on: April 02, 2014, 05:11:32 am
The idea sounds feasible but you need to flesh out your requirements a bit more to be certain.
Driving a 8x8 monochrome LED matrix is easy using a MAX7219 and you can daisy chain them together to drive 4 or more matrix displays.
Capacitive foil needs a bit more explaining as there are several ways to read this. Post links to the foil your hoping to use or explain it in more detail. Is it a strip/sheet. Does it have/need a controller. ETC.
51  Using Arduino / Programming Questions / Re: PLC pulse command equivalence on: April 02, 2014, 04:00:12 am
Does the beam output relay pulse when an object (car) triggers it or does the relay stay energized until the object clears the beam?
If the relay stays energized while the beam is broken then altering your code so the buzzer will not arm to sound again until the relay opens should be easy(ish).
If it pulses then does it keep pulsing at fixed intervals until beam is restored? This could also be covered by noting time of last trigger and ignoring other triggers in the interval window.
52  Using Arduino / Programming Questions / Re: Several capasitive sensors on Arduino UNO? on: April 02, 2014, 03:45:15 am
The demo sketch on this page shows multiple (3) sensors so it should work with more than one. I did notice that all sensors share a common pin. Not sure if this is a prerequisite or just frugal use of pins.
53  Community / Bar Sport / Is it just me? on: April 02, 2014, 01:36:25 am
I don't know if it's just me but a few of the posts I reply to seem to be left hanging where the OP never responds to my questions or reply. I wonder if the info they receive fixes the problem so they don't bother (until the next time) to say the problem is sorted or they have given up/moved on to new things.
54  Community / Website and Forum / Re: spurious 'sticky' topics in Programming Questions section on: April 02, 2014, 01:26:01 am

Probably AWOL traveling.  He has a low accuracy with touchscreens.

This is not the easiest site to navigate using an iThing and for me trying to sign out (or use any dropdowns) is almost impossible.
55  Community / Gigs and Collaborations / Re: Need help programming a photocell/relay shield on: April 02, 2014, 01:20:06 am
Glad it works.
56  Using Arduino / Project Guidance / Maybe on: April 02, 2014, 01:15:28 am
What Riva illustrated looks more like a proximity detector rather than a rangefinder.
Quote
I wonder if you mounted an IR range detector directly onto the inside of the lens it would still work and keep the project waterproof.
A better link with pictures and info. http://www.acroname.com/articles/sharp.html
57  Development / Other Software Development / Re: How to Port FreeRTOS in Arduino IDE on: April 01, 2014, 01:39:55 am
Thread moved to a more appropriate section.
Thanks
58  Community / Bar Sport / Re: Time to get designing. on: April 01, 2014, 01:35:38 am
Wowsers!  What did the Québécois do to piss off Atmel?
Ha, I did not notice the small print. Strange it is limited to one particular province unless Quebec are independent. I also wonder what the problem is with Italy.
59  Using Arduino / Project Guidance / Re: A $3.77 waterproof case for Arduino Projects on: April 01, 2014, 01:25:55 am
I wonder if you mounted an IR range detector directly onto the inside of the lens it would still work and keep the project waterproof.
60  Development / Other Software Development / Re: How to Port FreeRTOS in Arduino IDE on: April 01, 2014, 12:57:49 am
I am using arduino uno boards. So should i use ARM header file or Avr header file
It means we are in the wrong forum (I came here from unread posts and did not notice) and you should be using AVR for UNO
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